[esp-r] Re: Zone Control - ESP-r 11.9 GCC4 native windows version

[Jon Hand]

A user reports an issue with an ideal zone control.  This is the first report
of a basic zone control acting like a free float for version 11.9.  11.9 has
been used recently with models that include zone ideal controls so....

To check that it is not something specific to your model that is
exhibiting a sensitivity between 11.8 and 11.9 try one of the
exemplar models with an ideal zone control and try running that on
your computer and see what happens.  

If that works as expected then there is something about your model 
and to find out what is specifically the issue it would be useful to look 
at a model QA report.

ESP-r allows you to define controls that you might want to use
in the future and so there is a separate item in the ideal control menu selection that
links thermal zones to ideal controls - make sure that you have
assigned these relationships!  That is a classic reason why zones
free float.

One minor change that you could try is to set the actuator to 'the current zone'
rather than a specific zone. You could also check to see if it works
if you alter the sensor to point at the specific zone.

Regards, Jon Hand
________________________________________
From: Ian McCall [ijmccall at yahoo.com]
Sent: 12 July 2010 16:06
To: Jon Hand
Cc: ESP-r
Subject: Zone Control  - ESP-r 11.9 GCC4 native windows version

Bonjour / hello ESP-r support,

I am unable to implement the zone control function on my apartment building model with ESP-r 11.9 GCC4 native windows version. I am able to create a simple zone control file for one of the zones "apt1"  -
1) Zone Sensor - Senses current zone db temp
2) Zone Actuator - air point or surface in apt1
3) Basic controller for heating / cooling ...etc... and apply it to a zone etc...

I can successfully run / integrate simulation but the zone "apt1" results file indicates that it just “free-floats” and does follow the zone control file.

I have created simple “test” file with a simple zone control in ESP-r 11_8_GCC3 native windows version. I ran the simulator / integrated simulation and the results file indicates that the "test" zone responds to the Basic controller for heating / cooling.

However when I load the same “test” file in 11_9_GCC4 , run the simulator / integrate simulation the results file again indicates that the zone just “free-floats”. No matter what zone control I choose the zone just free floats.

Have I made a mistake somewhere? Is there an error in the compiling of ESP-r 11_9_GCC4 Native Windows Version??

Responses are welcome,

Ian